07/23/2016

The Decrease

Increase below 8 values are considered as low, being equally low capacity of the binoculars to zoom in the image and appreciate details. Values between 8 and 10 are normal, and identify general use binoculars, adaptable to a wide range of requirements (boating, hunting, nature, surveillance, etc.). Increase between 10-16 values are now decidedly high, and achieved a remarkable approach of the image, with great capacity for appreciation of details. Finally, binoculars above 16 increases are very powerful, being particularly suited for specialized applications (point to long-distance, astronomy, etc.). The increase of the power in the binoculars normally implies a greater tendency to vibration of the image.

Thus, an untrained person can focus hand easily binoculars 8 x, while other binoculars 16 x you'll very probably an unpleasant vibration of the image, having to resort to the help a tripod. In general, for binoculars magnification greater than 12 recommends the use of the tripod, and is practically obligated (if you want a precise vision) in binoculars 16 x or higher. As a notable exception, some stabilized high magnification binoculars are on the market mechanics or electronically (ZEISS, NIKON), needing no tripod, though at prices consequently very high. Other characteristic linked to high-powered binoculars is the decrease of the field of vision, that is, the area covered vision at a certain distance (in general 1000 m). For example, a 15 60 prismatic covers an area 1000 meters away or width of 75 metres, another of 10 40 vision increases the field up to 100 metres while a 8 30 model covers the same distance, a field of view of 135 m. This circumstance can be considered as one minor inconvenience, but it influences considerably the capacity or speed to locate an object or point when it they face the binoculars. Logically in low power binoculars the opposite occurs: the field of vision is wide, and it is much easier to find and focus on a particular subject.